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MAX5417, MAX5417L, MAX5417M, MAX5417N, MAX5417P, MAX5418, MAX5419
256-Tap, Nonvolatile, I²C-Interface, Digital Potentiometers
Industry's Smallest 256-Tap Digital Potentiometers Fit in a 3mm x 3mm TDFN
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Status
Active: In Production.
Description
The MAX5417/MAX5418/MAX5419 nonvolatile, linear-taper, digital potentiometers perform the function of a mechanical potentiometer by replacing the mechanics with a simple 2-wire digital interface, allowing communication with multiple devices. Each device performs the same function as a discrete potentiometer or variable resistor and has 256 tap points.
The devices feature an internal, nonvolatile EEPROM used to store the wiper position for initialization during power-up. The fast-mode I²C-compatible serial interface allows communication at data rates up to 400kbps, minimizing board space and reducing interconnection complexity in many applications. Each device is available with one of four factory-preset addresses (see the Ordering Information/Selector Guide in the full data sheet) and features an address input for a total of eight unique address combinations.
The MAX5417/MAX5418/MAX5419 provide three nominal resistance values: 50kΩ (MAX5417), 100kΩ (MAX5418), or 200kΩ (MAX5419). The nominal resistor temperature coefficient is 35ppm/°C end-to-end, and only 5ppm/°C ratiometric. This makes the devices ideal for applications requiring a low-temperature-coefficient variable resistor, such as low-drift, programmable gain-amplifier circuit configurations.
The MAX5417/MAX5418/MAX5419 are available in a 3mm x 3mm 8-pin TDFN package, and are specified over the extended -40°C to +85°C temperature range.
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Data Sheet
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An evaluation kit is available: MAX5417LEVCMODU, MAX5417LEVKIT
Key Features
- Power-On Recall of Wiper Position from Nonvolatile Memory
- Tiny 3mm x 3mm 8-Pin TDFN Package
- 35ppm/°C End-to-End Resistance Temperature Coefficient
- 5ppm/°C Ratiometric Temperature Coefficient
- 50kΩ/100kΩ/200kΩ Resistor Values
- Fast I²C-Compatible Serial Interface
- 500nA (typ) Static Supply Current
- Single-Supply Operation: +2.7V to +5.25V
- 256 Tap Positions
- ±0.5 LSB DNL in Voltage-Divider Mode
- ±0.5 LSB INL in Voltage-Divider Mode
- EV Kit Available
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Applications/Uses
- Liquid-Crystal Display (LCD) Contrast Control
- Low-Drift Programmable-Gain Amplifiers
- Mechanical Potentiometer Replacements
- Volume Control
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Key Specifications:
| Digital Potentiometers |
| Part Number |
Taper |
POTs |
Control Interface |
Wiper Memory |
Steps |
REND-TO-END
(kΩ) |
Temp. Coeff.
(ppm/°C) |
Wiper Resistance
(Ω) |
ICC @5V
(µA) |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| typ |
typ |
max |
max w/pins |
See Notes |
| MAX5418 |
Linear |
1 |
2-Wire Serial |
Non-Volatile |
256 |
100 |
50 |
325 |
1 |
9.6 |
$1.25 @1k |
| MAX5419 |
200 |
$1.25 @1k |
| MAX5417 |
50 |
$1.28 @1k |
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See All Digital Potentiometers (126)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
Functional Diagram
More Information
Didn't Find What You Need?
Information Index
Document Ref.: 19-3185
Rev 4;
2010-08-18
This page last modified: 2011-04-25
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